Fig. 4.

Leave-one-out cross-validation rates as a function of the PCA reduction space dimension $r$ for the SVM classifications based on (a) the geometric (shape) components of the Fshape atlas-to-subject transformations, based on (b) the JSM residual component of the transformations, and based on (c) the geometric and the JSM component. The effects of applying the discriminant vectors identified through this analysis to the template are shown on the right. The anatomical directions are consistent with Fig. 1: top is anterior, bottom is posterior, left is medial, and right is lateral. The colormaps in this and the following figures represent the residual JSM, that is the deviation from the template JSM. Negative values indicate narrowing of the joint space.